East Fork Big Creek Dam E-100a
East Fork Big Creek Dam E-100a is an earth dam located in Harrison County, Missouri, built in 1985. It carries a Low hazard potential classification.
About East Fork Big Creek Dam E-100a
The primary purpose of East Fork Big Creek Dam E-100a is flood risk reduction. The dam is designed to control downstream flooding by temporarily storing excess water during storms and releasing it at a controlled rate. The dam is owned by Ef Big Creek Subdistrict (local government). It impounds the East Fork Big Creek near Bethany.
The dam stands 29 feet tall and stretches 460 feet across, creates a reservoir covering 3 acres, has a maximum storage capacity of 65 acre-feet, and collects water from a drainage area of 32 square miles. Completed in 1985, the structure is 41 years old.
This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life.
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Location
| State | Missouri |
| County | Harrison |
| Nearest City | Bethany |
| River/Stream | East Fork Big Creek |
| Coordinates | 40.28764, -94.00992 |
Physical Characteristics
| Dam Type | Earth |
| NID Height | 29 ft |
| Dam Height | 27 ft |
| Dam Length | 460 ft |
| Year Completed | 1985 (41 years old) |
Storage & Hydraulics
| NID Storage | 65 acre-ft |
| Max Storage | 65 acre-ft |
| Normal Storage | 16 acre-ft |
| Surface Area | 3 acres |
| Drainage Area | 32 sq mi |
| Max Discharge | 48 cfs |
| Spillway Type | Uncontrolled |
Ownership & Safety
| Purpose | Flood Risk Reduction |
| Owner | EF BIG CREEK SUBDISTRICT |
| Owner Type | Local Government |
| Hazard Classification | Low |
| Condition Assessment | Not Rated |
| Emergency Action Plan | Not Required |
Identifiers
| NID ID | MO12331 |
| Federal ID | MO12331 |
| More Info | State Dam Safety Program |